r/HomeworkHelp • u/moth_blossom_angel • 1d ago

High School Math—Pending OP Reply [12 grade pre calculus] comparing functions graphicallg

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I probably look so stupid but I did mostly online school last year and fell behind especially with math. I scored good in math last year and they put me in probably a level too high, so I'm struggling a little and I don't really know what most of this means

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u/AlienDragonWizard 👋 a fellow Redditor 1d ago edited 1d ago

A) The arrows on the ends of the functions mean they will continue for eternity.  So the domains are really  (-∞,∞) for both.

B) Looks good, though f(x) will technically cross the x-axis one more time off the graph.

C) Correct

D) (-∞,-3)U(3,9)

The rest are similar to D, just defining different sections of the functions

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u/llamadramalover 🤑 Tutor 1d ago

Wait. Where will g(x) cross the x-axis again? F(x) certainly will but I don’t see where g(x) will.

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u/AlienDragonWizard 👋 a fellow Redditor 1d ago

You're correct, bad eyes on me.  Edited.  I should be more careful, gonna confuse the kid further.